It's often better to use 'and' and 'or' (lower precedence than '&&' and '||')
I don't get this. Lower precedence operators are better to use than higher precedence ones, even if they have existed in Perl longer, and are used in a myriad of other languages? If so, do you have some arguments to back up this claim?

Perhaps you meant to write "I would use" where you wrote "It's often better to use"?

I would write it as: 

if ($player_one_race eq 'terran' && $player_two_race eq 'zerg' ||
    $player_one_race eq 'zerg'   && $player_two_race eq 'terran') {
    ...
}

[download]
That is, I'd lose the redundant parenthesis, use the standard operators, and use whitespace to make the symmetry clear. Or: 
my %races;
$races{$_} = 1 for $player_one_race, $player_two_race;
if ($races{zerg} && $races{terran}) {
    ...
}

[download]

In reply to Re^2: Help with a logical structure for an if statement by JavaFan
in thread Help with a logical structure for an if statement by kereekerra

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.